1. Click Start, Run.
2. Type "regedit" (without the quotes).
3. Navigate to HKEY_LOCAL_MACHINE\Software\Microsoft
4. Create a key called DWM.
5. Inside of that key, create a new DWORD value called EnableMachineCheck, and set it to 0
6. Create another DWORD called Blur, and set that to 0
7. Create another DWORD called Animations and set that to 0.
This should enable Aero Glass without the blurring and without animations (to lessen the load on your graphics card)